Slub catcher



Dec. 7 ,1926. 1,609,917

A. R. PERRIN SLUB CATCHER Filed April 15, 1926 I Jrvventoa flliferiw'n,

Patented Dec. 7, 1926.

ALPHONSE B. PERRIN, OF'WESTBROOK, MAINE.

SLUB CATCHER.

Application filed April 15, 1926. Serial No. 102,190.

The invention relates to a slub catcher for winding machines.

The object of the present invention is to improve the construction ofslub catchers more especially that shown and described in my 1925,

copending application filed April 28, Serial No. 26,475, now Patent No.

1,585,315, and to provide an exceedingly sensitive slub catcher ofsimple,

practical and inexpensive construction adapted to positively preventslubs from passmg to the spool on which the yarn is being wound.

With these and other objects in view, the invention consists in theconstruction and novel combination and arrangement of parts hereinafterfully described, illustrated in the accompanying dra wings and pointedout in the claims hereto appended, it being understood that variouschanges in the form, proportion and minor details of construction,

within the scope of the claims, sorted to without departing from may berethe spirit or sacrificing any of the advantages of the invention.

In the drawings Figure l is a plan view of a slub catcher constructed inaccordance with this invention.

Fig. 2 is a transverse sectional view on the line 2-2 of Fig. 1.

Fig. 3 is a side elevation partly in section the portion in sectionbeing taken substantially on the line 33 of Fig. Fig. 4 is a rearelevation of catcher.

In the accompanying drawing in 2. the slub which is illustrated thepreferred embodiment of the invention, the slub catcher comprises in itsconstruction a supporting bracket 1 provided at its lower portion with aclamp 2 for sectional mounting it in position and having a front yarnguide 3 and a tension device 4c.

The supporting bracket is provided in rear of the tension device with asmooth face or jaw 5 over which passes.

the yarn The jaw 5 which is fixed preferably consists of a horizontallaterally extending arm round in cross section and recessed at the frontat 6 to receive the lower portion of a floating feeler finger 7 which isscribed in the aforesaid application.

The supporting bracket is provi ded with i to the slot.

a substantially vertical transversely disposed upwardly extendingportion 8 having a substantially rectangular opening 9 in its lowerportion and having its outer side or portion 10 locatedabove and spacedslight- Y ly from the fixed horizontal jaw 5. The

feeler finger is mounted on'a pivot 11 lowith a stop 1 L consisting of apin and located beneath the weighted arm for limiting the downward swingthereof and for maintaining the feeler finger when unthreaded inconvenient position adjacent. the said outer side 10 of the bracket toreceive the yarn and enable the same to be readily threaded after abreaking thereof or after one batch of yarn has been exhausted. .Thefeeler finger is provided at its lower portion with a slot 15 to receivethe yarn and the slotted portion of the feeler finger terminates at theouter side of the slot above the portion at the inner side of the slotto enable the yarn to be readily introduced in- The extended portion ofthe feeler finger at the inner side of the slot forms a guide fordirecting the yarn into the slot. The slot preferably terminates at itsupper end in an eye or opening as shown. The feeler finger is detachablyhung on the substantially hook-shaped pivot 11 and it is adapted toswing transversely of the bracket and also has a limited swingingmovement longitudinally in the direction of the movement of the yarn andits lower yarn receiving portion in use slides or moves along a lowercutting edge 16 of a hinged upper plate or member 17 constituting amovable jaw and cooperating with the fixed jaw 5 to form a yarn gripper.The hinged jaw is mounted in the opening 10 of the bracket on ahorizontal pivot 18' which extends across the opening 10 and which ismounted in suitably aligned perforations of the transverse portion ofthe bracket. The horizontal pivot 18 is preferably movable to enable thehinged jaw to be readily placed in and removed from the supportingbracket. The hinged jaw of the gripping device is approximately U-shapedin vertical section and extends upwardly and rearwardly and then down.-Wardly and forwardly, the lower side being extended beyond the upperside and. projecting through the opening in the bracket and the saidcutting edge 16. The particular shape of the hinged jaw throws thecenter of gravity above and in rear of the horizontal pivot 18 so thatthe tendency of the hinged aw is to swing forwardly, the forwardmovement being limited by a stop 19 consisting of an integral lugprojecting laterally at one side of the hinged jaw and engaging theouter side 10 of the transverseportion of the bracket at the rear facethereof. This maintains the cutting edge in a forward projectingposition and also in spaced relation with the fixed jaw to provide apassage for the yarn.

The yarn passes through the slot of the feeler finger and through theyarn gripper, the feeler finger floating with the yarn and sliding onthe cutting edge or" the hinged jaw and when a slub reaches the feelerfinger it turns to a vertical position to pass through the slot of thefeeler finger and is then instantly caused to twist and turn to ahorizontal position by the cutting edge of the hinged jaw of thegripping device. This will either break the slubor cause the slub toswing the hinged jaw into engagement with thefixed jaw and break thethread. As the. feeler finger is in contact with the cutting edge of thehinged jaw and slides on the same in any transverse movement of thefeeler. finger the hinged jaw causes the instant twisting of asluband'produces a positive breaking of the same. The feeler finger isadapted to move backwardly with the hinged jaw of. the gripping devicein the closing movement thereof and there will be no opportunity byreason of any spacing of the feeler finger from the cutting edge of themovable jaw passing through the slub catcher without causing a breakageof the yarn. Slubs consist of soft untwisted portions of the yarn andwill ordinarily pass through. an opening of a size sufficient to permitthe passage of the yarn but it has been found that the flattening or"the slub to pass. through the slot of the feeler finger and the instanttwisting of the slub at right angles will positively produce a breakingof the slub or an operation of the yarn gripper and a consequentbreaking of the yarn. The hook-shaped pivot of the feeler finger willenable feeler fingers to be readily removed from and placedon thesupporting pivot so that a feelerfinger having a slot of the requiredsizeinaybe readily placed in fixed jaw and normally spaced slightlyabove the same to provide a passage for the yarn and adapted to swingdownwardly into contact with the fixed jaw and a pivoted float; ingfeeler finger having a yarn slot and slid able on the lower edge oi -thejaw whereby a slub will be twisted by the teeler-finger and the movablejaw and either broken by such twisting or gripped and broken; ing of thehinged jaw.

2. A slub catcher comprising'a'supporting bracket having a fixedhorizontal jaw, a. movable jaw hinged to the supporting bracket abovethe fixed jaw and having ahorizontal cutting edge normally spacedslightly above the said fixed-jaw and adapt; ed to swing do vnwardlyintocontact with the fixed jaw, and a pivoted floating feeler fingerhaving a substantially vertical yarnslot and slidable on the cuttingedge ofthe jaw in its floating action whe'rebyafslubpassing through tieslot of" the ieelerfingenis twisted substantially at rightangles-by thecutting edge or"- the'hinged jaw to break} the slub by the twistingthereof or by closing the jaw onthe slub.

by the clos- 3. A slub catcher comprising asupporting;

bracket havin a fixed horizontal 'aw-and u a n n provided above the samewith an open1ng,;a

movable jaw hinged to the supporting bracket at the upperportionoftheopen'ing and extending forwardly through the open ing from the backof the bracketand-previded with-a lower horizoi'italv cutting edgenormally spaced slightly above the-fixed fjaw and a pivotedfioatingteeler finger-provided with a substantially vertical yarn: slot andslidable on the cutting edge of the hinged jaw whereby a slub passingthrough thesl'ubcatcher is given a, halt twist toibreak the-slub eitherby such twisting of; the same orb-5 closing the hinged jaw on the-slub.

i. A slub catcher comprising a supportingbracket having a fixed]horizontal jaw a movable aw hinged to the bracket above. the fixed awand provided with a; lower horizontal cutting edge, said hinged jawhaving its center gravity in rear of the vertical' plane of the pivotfor causing the cutt-ing ed e to project forwardly through the bracket-1n; slightly spaced relation with the fixed jaw and a pivoted floatingfeelerfingerhaving a yarn slot slidable in its fioatingaction-on thecutting edge of the hinged jaw.

5. A slub catcher comprising a supporting bracket having a fixedhorizontal jaw, a movable aw hinged to the bracket-abovethei fixed jawand'providedwith a lowerhor-i zontal cutting edge, saidhinged jawhavingits center gravity in rear of the vertical plane of the pivot forcausing the cutting edge to project forwardly through the bracket inslightly spaced relation with the fixed jaw and a pivoted floatingfeeler finger having a yarn slot slidable in its floating action on thecutting edge of the hinged jaw, and a stop carried by the hinged jaw andarranged to engage the bracket for limiting the forward movement of thesaid bracket.

6. A slub catcher comprising a supporting bracket having a fixedhorizontal jaw and provided above the same with an opening, a movablejaw hinged to the bracket at the upper portion of the said opening andhaving a lower horizontalcutting edge projecting through the opening,said hinged jaw being extended upwardly and rearwardly from the bracketand then downwardly and forwardly to the lower portion of the openingwhereby the center of gravity is in rear of the pivot of the jaw and thelatter caused to swing forwardly, a stop carried by the hinged jaw andarranged to engage the bracket to limit the forward movement of the saidjaw to maintain the cutting edge normally spaced slightly above thefixed jaw and a floating r'e-eler finger pivoted to the bracket abovethe said opening and provided at its lower ortion with a yarn slot andslidable on t e cutting edge of the hinged aw in its floating action.

7. A slub catcher comprising a supporting bracket having a transverseportion provided with an opening, said bracket having a fixed horizontaljaw at the bottom of the opening, a movable jaw hinged to the bracket atthe upper portion of the opening and having a lower horizontal cuttingedge normally spaced slightly above the fixed jaw and arranged to swingdownwardly into contact with the same, a pivot projecting from thebracket above the said opening and extend ing upwardly in substantiallyhook formation, a floating teeler finger detachably hung from the saidpivot and having a lower slotted portion slidable on the cutting edge ofthe hinged jaw, said feeler finger being provided at its inner side witha projecting arm forming a weight for urging the feeler finger towardsthe outer side of the bracket and a stop projecting from the bracket andarranged to receive the weighted arm of the feeler finger.

In testimony whereof, I have hereunto set my hand.

ALPHONSE R. PERRIN.

